18
• After a few seconds the display will
show
“-0.0-”
. The meter is now zeroed
and ready for calibration. The blinking
“READ”
asks for reading calibration
standard.
• Remove the cuvette.
• Place the
CAL CHECK™
Standard
HI 96702-11
Cuvette B into the cuvette
holder and ensure that the notch on the
cap is positioned securely into the groove.
• Press
READ/ /TIMER
and the lamp,
cuvette and detector icons will appear on
the display, depending on the
measurement phase.
• After measurement the instrument will
show for three seconds the
CAL CHECK™
Standard value.
Note:
If the display shows
“STD HIGH”
, the
standard value was too high. If the
display shows
“STD LOW”
, the
standard value was too low. Verify
that both
CAL CHECK™
Standards
HI 96702-11
Cuvettes, A and B are
free from fingerprints or dirt and that
they are inserted correctly.
• Then the date of the last calibration (e.g.:
”01.08.2009”
) appears on the display,
or
“01.01.2009”
if the factory calibration
was selected before. In both cases the
year number is blinking, ready for date
input.